The side braces are a considerable improvement, Dynamat in the dog house not so much.
I personally wouldn't have another pair of LaScala's without braces and some version of the DJK port mod.
H.B.
Seems like a step in the wrong direction, but let your ears be the judge.
I have seen several posts where someone preferred type As with set amps in the proper environment.
What I don't know is a lot. HB.
Have a pair of K77 square magnets 1 has original Diaphragm the other has a replacement diaphragm.
Original sounds better than the replacement.
Not a matched set $60 for the pair
Not to tough, I fully assemble the horn then sand from the mouth to the throat with 36-40 grit until smooth, then clean up with 80grit.
After the horn is sealed, I think I finished with 150 grit.
H.B.